Tero Kristo <[email protected]> writes: > From: Tero Kristo <[email protected]> > > Previously only chipselect 0 was controlled, which would result in the > chipselect 1 running on too low rate during low core OPPs. > > Applies on top of PM branch. > > Signed-off-by: Tero Kristo <[email protected]>
Hi Tero, This does part of what Jean Pihet does in his recent patch[1] to add support for 2 CSs. Your version assumes the same parameters for both SDRAM parts, and Jean has expanded that so board code can configure different paramaters for the different CSes. I have yet to fully review Jean's patch, but will probably take his version so that two different SDRAM parts could be used. Kevin [1] See hist post from 26 May: [RFC][PATCH] OMAP3: add support for 2 SDRAM chip selects (was: Re: Beagleboard rev C memory timings & suspend/resume) > --- > arch/arm/mach-omap2/sram34xx.S | 29 +++++++++++++++++++++++------ > 1 files changed, 23 insertions(+), 6 deletions(-) > > diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S > index f41f8d9..bcfe9eb 100644 > --- a/arch/arm/mach-omap2/sram34xx.S > +++ b/arch/arm/mach-omap2/sram34xx.S > @@ -187,15 +187,24 @@ wait_dll_unlock: > bne wait_dll_unlock > bx lr > configure_sdrc: > - ldr r11, omap3_sdrc_rfr_ctrl > + ldr r11, omap3_sdrc_rfr_ctrl_0 > str r0, [r11] > - ldr r11, omap3_sdrc_actim_ctrla > + ldr r11, omap3_sdrc_rfr_ctrl_1 > + str r0, [r11] > + ldr r11, omap3_sdrc_actim_ctrla_0 > + str r1, [r11] > + ldr r11, omap3_sdrc_actim_ctrla_1 > str r1, [r11] > - ldr r11, omap3_sdrc_actim_ctrlb > + ldr r11, omap3_sdrc_actim_ctrlb_0 > + str r2, [r11] > + ldr r11, omap3_sdrc_actim_ctrlb_1 > str r2, [r11] > ldr r11, omap3_sdrc_mr_0 > str r6, [r11] > ldr r6, [r11] @ posted-write barrier for SDRC > + ldr r11, omap3_sdrc_mr_1 > + str r6, [r11] > + ldr r6, [r11] @ posted-write barrier for SDRC > bx lr > > omap3_sdrc_power: > @@ -206,14 +215,22 @@ omap3_cm_idlest1_core: > .word OMAP34XX_CM_REGADDR(CORE_MOD, CM_IDLEST) > omap3_cm_iclken1_core: > .word OMAP34XX_CM_REGADDR(CORE_MOD, CM_ICLKEN1) > -omap3_sdrc_rfr_ctrl: > +omap3_sdrc_rfr_ctrl_0: > .word OMAP34XX_SDRC_REGADDR(SDRC_RFR_CTRL_0) > -omap3_sdrc_actim_ctrla: > +omap3_sdrc_rfr_ctrl_1: > + .word OMAP34XX_SDRC_REGADDR(SDRC_RFR_CTRL_1) > +omap3_sdrc_actim_ctrla_0: > .word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_A_0) > -omap3_sdrc_actim_ctrlb: > +omap3_sdrc_actim_ctrla_1: > + .word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_A_1) > +omap3_sdrc_actim_ctrlb_0: > .word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_B_0) > +omap3_sdrc_actim_ctrlb_1: > + .word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_B_1) > omap3_sdrc_mr_0: > .word OMAP34XX_SDRC_REGADDR(SDRC_MR_0) > +omap3_sdrc_mr_1: > + .word OMAP34XX_SDRC_REGADDR(SDRC_MR_1) > omap3_sdrc_dlla_status: > .word OMAP34XX_SDRC_REGADDR(SDRC_DLLA_STATUS) > omap3_sdrc_dlla_ctrl: > -- > 1.5.4.3 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
